使用Cucumber Examples关键字时步骤定义仍显示Undefined问题

Feature文件中的测试场景 #

Scenario Outline: User can navigate to expected url by selecting the associated link
        Given Application configured for testing
        And on the Test page screen
        When the user selects link for <pageName> - <dataTestId>
        Then the user navigates to the expected url: <urlPathName>
        Examples:
            | pageName | dataTestId | urlPathName |
            | Test Page | passwordTestLink  | passwordTest |
            | Custom Test | customTestLink  | customTest |

错误信息 #

? When the user selects link for Custom Test - customTestLink
Undefined. Implement with the following snippet:Here is an example of one of the steps which is not being found:
When('the user selects link for Custom Test - customTestLink', async function () {
// Write code here that turns the phrase above into concrete actions
return 'pending';
});

当前的Step定义 #

When('the user selects link for {string} - {string}', async function( dataTestId:string) {
    administrationPage = new AdministrationPage(fixture.page);
    await administrationPage.clickLink(dataTestId);
})

解决方案 #

问题核心是参数数量与顺序不匹配：

• Feature文件的When步骤包含两个占位符<pageName>和<dataTestId>，对应Step定义里的两个{string}占位符，但你的函数只接收了一个参数dataTestId，Cucumber无法完成参数匹配。
• 必须保证Step定义的参数顺序和Feature中占位符的顺序完全一致。

修正后的Step定义：

When('the user selects link for {string} - {string}', async function(pageName:string, dataTestId:string) {
    administrationPage = new AdministrationPage(fixture.page);
    await administrationPage.clickLink(dataTestId);
})

注：即使pageName参数在业务逻辑中用不到，也必须声明它来匹配参数数量，否则Cucumber会判定步骤不匹配。

另外，同步检查Then步骤的定义是否存在同样的参数匹配问题，确保其参数数量、顺序与Feature中的<urlPathName>占位符对应。

内容的提问来源于stack exchange，提问作者Kieran M